Home / 20,650.37-30,976.72-5,858.12

Finding the Fourth Proportional to 20,650.37, 30,976.72 and 5,858.12

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Solution

The fourth proportional to 20,650.37, 30,976.72 and 5,858.12 is: 8,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.37 : 30,976.72 = 5,858.12 : x
  2. Step 2: Convert to fraction form
    20,650.37/30,976.72 = 5,858.12/x
  3. Step 3: Cross multiply
    20,650.37x = 30,976.72 × 5,858.12
  4. Step 4: Simplify right side
    20,650.37x = 181,465,342.97
  5. Step 5: Solve for x
    x = 181,465,342.97/20,650.37
  6. Step 6: Final answer
    x = 8,787.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.